Pilih Jawapan yang Betul

(0/0)

Two semen analyses from a man undergoing a reproductive evaluation include volumes of 2.5 and 1.8 mL, densities of 24 and 28 million/mL, and motility 0%. The next step is:

Pilih Jawapan yang Betul

(0/0)

0

0

1

2

3

4

1

1

442373

0

120

none

Semen observed under phase contrast light microscopy reveals abundant round cells similar in size and shape to leukocytes. The next step is:

Pilih Jawapan yang Betul

(0/0)

0

0

1

2

3

4

1

1

442374

0

120

none

A direct assay of sperm-head DNA fragmentation is the:

Pilih Jawapan yang Betul

(0/0)

0

0

1

1

2

3

4

1

442375

0

120

none

The assay that most closely models incubational in vitro fertilization is:

Pilih Jawapan yang Betul

(0/0)

0

0

1

2

3

4

1

1

442376

0

120

none

A 26-year-old man presenting for fertility evaluation has two semen analyses, one with volume 2.1 mL and density 32 million/mL, and another with volume 2.3 mL and density 28 million/mL. No motile sperm are observed in either, and vital stain demonstrated greater than 80% metabolically active sperm in both. The next step is:

Pilih Jawapan yang Betul

(0/0)

Pilih Jawapan yang Betul

(0/0)

0

0

1

1

2

3

4

1

442378

0

120

none

A 28-year-old man desires a biological child. Physical examination is normal. Two semen analyses reveals azoospermia with volumes of 0.8 and 0.7 mL, and no sperm is identified in a postejaculatory urinalysis. FSH is 3.2 IU/L. Transrectal ultrasound reveals seminal vesicles of 0.9 and 1.1 cm in largest diameter, and no midline cyst is visualized. The next step is:

Pilih Jawapan yang Betul

(0/0)

0

0

1

2

1

3

4

1

442379

0

120

none

A 33-year-old man desires a biological child and is found to have azoospermia with semen volumes 2.2 and 2.4 mL on two analyses. Longitudinal axis of the left testis is 3.3 cm, and the right is 3.5 cm. Serum FSH is 9.3 IU/L, and testosterone is 440 ng/dL. The next step is:

Pilih Jawapan yang Betul

(0/0)

0

0

1

2

3

1

4

1

442380

0

120

none

A 30-year-old man desires a biological child with his 28-year-old wife. Her evaluation is normal. Semen analysis reveals density 84 million/mL and globozoospermia. The next step is:

Pilih Jawapan yang Betul

(0/0)

0

0

1

1

2

3

4

1

442381

0

120

none

The most common genetic cause of male infertility is:

Pilih Jawapan yang Betul

(0/0)

0

0

1

2

3

1

4

1

442382

0

120

none

The biological system responsible for protecting haploid male germ cells from the immune system is: